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Chill hours in 75930

The short answer

75930 averages 602 chill hours per winter (264739 across 10 years) in USDA zone 9a.
75930 climate
Average chill hours602 (264–739 across 10 winters)
USDA hardiness zone9a
Last spring frosttypically January 18 – March 6
First fall frosttypically November 14 – December 20

Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.

Every variety in our database, checked against 75930’s chill hours and zone:

Marginal (12)

Possible in a good year or a favorable microclimate — click through for the caveats.

Marginal varieties for this location
VarietyFruit
GravensteinApple
HarcotApricot
Wenatchee MoorparkApricot
FlavortopNectarine
IndependenceNectarine
FrostPeach
Flavor SupremePlum
Green GagePlum
Black TartarianSweet Cherry
RainierSweet Cherry
VanSweet Cherry
Early RichmondTart Cherry
How many chill hours does 75930 get?
75930 averages 602 chill hours per winter, ranging from 264 to 739 across the last 10 years.
What hardiness zone is 75930?
75930 is in USDA hardiness zone 9a.

Growing fruit trees in 75930? Get a care calendar anchored to this exact climate, with email reminders.

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Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026